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Methods for promoting hair growth

a hair growth and hair technology, applied in the field of hair growth promotion, can solve problems such as the destruction of hair follicles, and achieve the effect of stimulating hair growth

Inactive Publication Date: 2013-07-04
STEMNION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides new methods for promoting hair growth using special cells called extraembryonic cytokine secreting cells (ECS cells) and their conditioned media, cell lysates, and cell products alone or in combination with other agents like minoxidil or finasteride. The ECS cells can be undifferentiated or partially / fully differentiated. The therapeutic effect of the method is to stimulate hair follicle stem cell differentiation and promote hair growth in individuals with hair loss or thinning.

Problems solved by technology

Scarring alopecia may be a consequence of burns (accidental or post surgical from cryosurgery or laser surgery) or trauma, which often causes destruction of hair follicles.

Method used

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  • Methods for promoting hair growth
  • Methods for promoting hair growth

Examples

Experimental program
Comparison scheme
Effect test

example 1

Preparation of AMP Cell Compositions

[0101]Recovery of AMP Cells

[0102]AMP cells were dissociated from starting amniotic membrane using the dissociation agents PXXIII, and trypsin. The average weight range of an amnion was 18-27 g. The number of cells recovered per g of amnion was about 10-15×106 for dissociation with PXXIII and 5-8×106 for dissociation with trypsin.

[0103]Method of obtaining selected AMP cells: Cells were plated immediately upon isolation from the amnion. After ˜2 days in culture non-adherent cells were removed and the adherent cells were kept. This attachment to plastic tissue culture vessel is the selection method used to obtain the desired population of cells. Adherent and non-adherent AMP cells appear to have a similar cell surface marker expression profile but the adherent cells have greater viability and are the desired population of cells. Adherent AMP cells were cultured until they reached 120,000-150,000 cells / cm2. At this point, the cultures were confluent. ...

example 2

Generation of ACCS

[0104]The AMP cells are used to generate ACCS. The AMP cells were isolated as described herein and 1×106 / mL cells were seeded into T75 flasks containing 10 mL culture medium. The cells were cultured until confluent, the medium was changed and ACCS was collected 3 days post-confluence. Skilled artisans will recognize that other embodiments for collecting ACCS from confluent cultures, such as using other tissue culture vessels, including but not limited to cell factories, flasks, hollow fibers, or suspension culture apparatus, are also contemplated by the methods of the invention. It is also contemplated by the instant invention that the ACCS be cryopreserved following collection. It is also contemplated that the ACCS be lyophilized following collection. It is also contemplated that the ACCS be formulated for sustained-release following collection.

example 3

Detection of Growth Factors and Cytokines Important in Promoting Hair Growth

[0105]To determine which growth factors and / or cytokines important in promoting hair growth may be secreted by the AMP cells of the present invention, ACCS was isolated from cell cultures as described above.

[0106]The ACCS was analyzed for secreted factor content via antibody arrays, ELISA, multiplex and mass spectroscopy assays.

[0107]Results

[0108]The following relevant factors were detected via antibody arrays, ELISA or multiplex assay in ACCS: bFGF (FGF2), PDGF, KGF (low), IGF-1 (low). Thymosin β4 was detected by mass spectroscopy.

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Abstract

The invention is directed to methods for promoting hair growth. Such methods utilize novel compositions, including but not limited to extraembryonic cytokine secreting cells (herein referred to as ECS cells), including, but not limited to, amnion-derived multipotent progenitor cells (herein referred to as AMP cells), conditioned media derived therefrom (herein referred to as amnion-derived cellular cytokine solution or ACCS), cell lysates derived therefrom, and cell products derived therefrom, each alone or in combination.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims priority under 35 USC §119(e) of U.S. Provisional Application No. 60 / 961,772, filed Jul. 24, 2007, the entirety of which is incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The field of the invention is directed to methods for promoting hair growth. Such methods utilize novel compositions, including but not limited to extraembryonic cytokine secreting cells (herein referred to as ECS cells), including, but not limited to, amnion-derived multipotent progenitor cells (herein referred to as AMP cells), conditioned media derived therefrom (herein referred to as amnion-derived cellular cytokine solution or ACCS), cell lysates derived therefrom, and cell products derived therefrom, each alone or in combination.[0004]2. Related Art[0005]Philp, D., et al., (The FASEB J express article 10.1096 / fj.03-0244fje, published online Dec. 4, 2003) report that Thymosin β4 increases hair ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61K38/18A61K45/06A61K38/57A61K35/50
CPCA61K8/982A61K35/50A61Q7/00A61K35/54A61K38/57A61K38/1841A61K38/1858A61K38/1866A61K38/1891A61K45/06A61P17/14
Inventor SING, GEORGE L.MARSHALL, VIVIENNE S.EMIG, CHARLOTTEROBSON, MARTIN C.
Owner STEMNION
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